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121333252333 = 709171132937
BaseRepresentation
bin111000100000000000…
…1101000000011101101
3102121011220220211212111
41301000001220003231
53441442303033313
6131423440404021
711523515425306
oct1610001500355
9377156824774
10121333252333
1147503504357
121b622316611
13b598495787
145c304417ad
15325206343d
hex1c400680ed

121333252333 has 4 divisors (see below), whose sum is σ = 121504385980. Its totient is φ = 121162118688.

The previous prime is 121333252321. The next prime is 121333252357. The reversal of 121333252333 is 333252333121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 333252333121 = 501596643919.

It can be written as a sum of positive squares in 2 ways, for example, as 15534631044 + 105798621289 = 124638^2 + 325267^2 .

It is a cyclic number.

It is not a de Polignac number, because 121333252333 - 29 = 121333251821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121333252295 and 121333252304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333252393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85565760 + ... + 85567177.

It is an arithmetic number, because the mean of its divisors is an integer number (30376096495).

Almost surely, 2121333252333 is an apocalyptic number.

It is an amenable number.

121333252333 is a deficient number, since it is larger than the sum of its proper divisors (171133647).

121333252333 is an equidigital number, since it uses as much as digits as its factorization.

121333252333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171133646.

The product of its digits is 29160, while the sum is 31.

Adding to 121333252333 its reverse (333252333121), we get a palindrome (454585585454).

The spelling of 121333252333 in words is "one hundred twenty-one billion, three hundred thirty-three million, two hundred fifty-two thousand, three hundred thirty-three".

Divisors: 1 709 171132937 121333252333